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diffusers/docs/source/zh/optimization/xformers.md
Sam Yuan bc2762cce9 try to use deepseek with an agent to auto i18n to zh (#12032)
* try to use deepseek with an agent to auto i18n to zh

Signed-off-by: SamYuan1990 <yy19902439@126.com>

* add two more docs

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* fix, updated some prompt for better translation

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* Try to passs CI check

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* fix up for human review process

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* fix up

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* fix review comments

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Signed-off-by: SamYuan1990 <yy19902439@126.com>
2025-08-13 08:26:24 -07:00

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# xFormers
我们推荐在推理和训练过程中使用[xFormers](https://github.com/facebookresearch/xformers)。在我们的测试中,其对注意力模块的优化能同时提升运行速度并降低内存消耗。
通过`pip`安装xFormers
```bash
pip install xformers
```
<Tip>
xFormers的`pip`安装包需要最新版本的PyTorch。如需使用旧版PyTorch建议[从源码安装xFormers](https://github.com/facebookresearch/xformers#installing-xformers)。
</Tip>
安装完成后,您可调用`enable_xformers_memory_efficient_attention()`来实现更快的推理速度和更低的内存占用,具体用法参见[此章节](memory#memory-efficient-attention)。
<Tip warning={true}>
根据[此问题](https://github.com/huggingface/diffusers/issues/2234#issuecomment-1416931212)反馈xFormers `v0.0.16`版本在某些GPU上无法用于训练微调或DreamBooth。如遇此问题请按照该issue评论区指引安装开发版本。
</Tip>